Pump Lasers – Fiber & DPSS

What are Pump Lasers?

Fiber lasers, like all other laser systems, require an excitation source to pump energy into the system. This is done through optical fiber pumping, similar to how it is done in DPSS lasers. The main difference between the two laser types is the delivery method of the laser pumping source.  This source is traditionally coupled into a large core fiber which is then fused into a double clad fiber. This double clad fiber is doped with the particular gain material of interest for that specific laser.  The double cladding allows for the high-power multi-mode fiber to be guided into the larger outer core at the same time as the single mode laser builds up in the smaller inner core.

Depending on the gain material that the fiber is doped with, the absorption band may be wide, or narrow, which means that in some cases, traditional high-powered laser diodes are acceptable, but in other instances wavelength stabilized diodes are required.  On this page, you will find a list of all of the fiber laser modules and pumping sources, including both wavelength stabilized and un-stabilized laser diodes.

Recommended Laser Series

We recommend the following laser series options for Pump Laser applications. There can often be a ton of options and many variables. Contact us today for help finding the perfect laser for your specific application!

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Jasper Series

The Jasper series is a diverse set of high-performance femtosecond fiber lasers providing different solutions based on a standard technology. The series includes the high-power Jasper X0 (200 µJ pulse energy / 60 W average power), the compact Jasper Micro (5 µJ pulse energy / 7 W average power) in a space-saving design, and the Jasper Flex for microprocessing (30 µJ pulse energy). Each model provides a fast warm-up time, long-term stability, and hands-free operation. Whether you need high power, compactness, or specific processing capabilities, the Jasper series has a solution.

JDL Series

The JDL series offers industry-leading high-power unmounted laser diode bars in the 760 nm – 1060 nm spectral region. Our unmounted laser bars provide a wide range of emitter configurations and cavity lengths, with operational modes up to 500 W. We offer low fill factor bars suitable for fiber coupling, high-power bars up to 300W for CW or hard-pulse DDL applications, and QCW bars up to 500W for QCW or long-pulse optical pumping and medical applications.

JOLD-FC Series

The JOLD-FC series of high-power fiber-coupled laser diode arrays (bars) are fully customizable and available at various levels of integration, providing a cost-effective solution for OEM applications. With superior reliability and efficiency, our lasers offer industry-leading performance. We offer standard wavelengths of 808, 940, 980, and 1470 nm, with 200, 400, or 600 µm fiber core diameters. You can also choose between pilot lasers, monitor diodes, and integrated Peltier elements.

JOLD-Open Heatsinks Series

The JOLD-Open Heatsinks Series offers industry-leading, reliable, and cost-effective high-power free-space mounted diode lasers. Our proprietary heat sink and assembly technology, paired with our focus on advanced optical pumping and direct-diode-laser technology, results in diode lasers with unmatched performance. This series offers options from 792 nm up to 1035 nm, and average output powers up to 300 W.

JOLD-Stacks Series

The JOLD–Stacks Series offers a highly modular approach for power scaling well into the kW range. The series features multimode, free-space laser diode stacks with options for 808, 940 & 980 nm, CW & QCW operation, and up to 2400 W average output power. We achieve optimal beam quality (BPP) by reducing the stack pitch without compromising cooling capacity. Our proven hard-solder technology and strictly monitored production processes ensure tried & tested reliability under even the harshest environmental conditions.

LDX Series

The LDX Series of made-in-the-US, high-power, multimode laser diodes provide wavelengths from 400nm – 1900nm, a wide range of output powers and package types, as well as completely customized solutions. We have been offering these high-quality laser diodes for over 25 years. The performance, reliability, and lifetimes are time tested, and if for some reason there is an issue, we will make it right. 

R Series

R Series

The R series of wavelength-stabilized single-mode and multimode laser diodes offer narrow linewidth output in wavelengths from 633nm thru 1064nm, with output powers up to 5 W. This highly customizable series offers package options ranging from components as basic as a TO-56 or 14-pin BF packaged diodes to OEM modules, including electronics, to UL/CE and IEC-certified turn-key systems. The R series is the perfect source for various markets, including chemical analysis, bio-medical, fiber laser, and scientific applications.

RPK Series

The RPK Series of multiple, single-emitter fiber-coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to ≈ 500W output power. Our specialized fiber-coupling techniques ensure high efficiency, stability, and superior beam quality, while rigorous inspections and burn-in procedures guarantee each product’s reliability, stability, and long lifetime. Highly customizable packages allow us to meet our customers’ specific needs, providing high-quality products at reasonable prices. 


The RPKBDL Series is a high-power direct diode turn-key system available in wavelengths of 445nm, 915nm, or 976nm, providing up to 3kW of power and unprecedented brightness. Its pluggable design makes maintenance easy, avoiding troubles and high time costs caused by return-to-factory maintenance. The RPKBDL series results from continuous innovation, ensuring high technical strength and product quality. This highly customizable system allows us to meet our customers’ specific needs, providing high-quality products at reasonable prices.